Black Rock Weather Forecast

    • 12
    • 19

    Cloudy

    • 8
    • 27

    Sunny

    • 16
    • 23

    Shower

    • 10
    • 25

    Partly cloudy

    • 13
    • 27

    Partly cloudy

    • 15
    • 25

    Shower

    • 12
    • 21

    Partly cloudy

Today 20 Apr Lower South East

Partly cloudy. The chance of morning fog near the eastern border. Light winds becoming southerly 15 to 20 km/h in the early afternoon then becoming light in the late afternoon. Daytime maximum temperatures around 20.

Lower South East Coastal Waters

Cape Jaffa to SA-Vic Border
Wind
Southerly 10 to 15 knots turning east to southeasterly below 10 knots in the late morning and afternoon.
Seas
Below 1 metre.
1st Swell
Southwesterly 1.5 metres, increasing to 1.5 to 2 metres during the morning.
Weather
Cloudy.
Weather Situation
A high pressure system south of the state will move to the southeast of Tasmania today, but will maintain a ridge over SA ahead of a cold front during Tuesday and Wednesday. Another high will move across waters to the south later Wednesday and will be centred southeast of Tasmania late Thursday morning.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Black Rock Temperature Statistics View More

April Temperature

Mount Gambier Airport (34km)

  • Lowest 18 April, 2026

    3 °C

  • Average April

    13.7 °C

  • Highest 5 April, 2026

    25.3 °C

Climate (2021–Present)

Mount Gambier Airport (34km)

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  • Average Low 2021–2026

    8.8 °C

  • Average 2021–2026

    13.7 °C

  • Average High 2021–2026

    20 °C
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